A mini arcade controller is often so small that there is little to no wrist resting space, but the tradeoff is that you get something portable and so on.
The Haute42 S16 is a small & slim stickless controller with more buttons than usual, and the S13 edition has less buttons.
The Haute42 M Lite brings back many of the awesome features of the M16—this time with new colors and lighter weight.
The Slider by Junkfood Custom Arcades is a mini stickless controller with WASD keys, arcade buttons, and spacebar-like keys.
This slim mini controller combines a D-pad with arcade buttons in the Noir layout and has a grip on the left side.
The VANG propad is a leverless controller that is a solution for pad players who would like arcade buttons without sacrificing the D-pad.
The Atachon Angel has split wings that allow you to set the sides of the controller farther apart than usual if you want.
When you combine the world of fighting games with rhythm games, you get HyperStrike's Hall Effect Leverless Controller.
Imagine a gladiator as a leverless controller, and you get the SGF Gladius: partially made of steel—and can readily come with PS5 support.